Koyuki Himekawa (or Snow White) was a middle school girl who had always dreamed of becoming a Magical Girl, sharing that dream with her childhood friend Souta Kishibe. She vowed to be a righteous and pure Magical Girl after transforming for the first time. Her ability allows her to hear the voices of anyone under distress.
She survives the elimination game without killing anyone. However, her ideology is shattered as a result of what she had seen. She now desires strength in order to prevent large scale conflicts.